<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

         <!-- 卡片视图区 -->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                     <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                     </el-input>
                </el-col>
                 <el-col :span="8">
                     <el-button type="primary" @click="goAddPage">添加商品</el-button>
                 </el-col>
            </el-row>

            <!-- 用户列表区域 -->
      <el-table :data="goodsList" style="width: 100%" border stripe>
        <el-table-column label="#" type="index"> </el-table-column>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)"> </el-table-column>
        <el-table-column prop="goods_weight" label="商品种量"> </el-table-column>
        <el-table-column prop="add_time" label="创建时间">
            <template slot-scope="scope">
                {{scope.row.add_time | dateFormat}}
            </template>
        </el-table-column>
        <el-table-column label="操作">
          <!-- 作用于插槽的使用 -->
          <template slot-scope="scope">
              <el-button type="primary" icon="el-icon-edit"></el-button>
              <el-button type="danger" icon="el-icon-delete" @click="deleteGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5, 10, 15, 20]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total"
            background>
         </el-pagination>
        </el-card>
    </div>
</template>
<script>
export default {
  data () {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 总数据
      goodsList: [],
      total: 0

    }
  },
  watch: {

  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取参数列表失败')
      }
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    //
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    deleteGoods (id) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !== 200) {
          this.$message.error(res.meta.msg)
        }
        this.$message.success('删除成功')
        this.getGoodsList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    // 跳转到添加商品页面
    goAddPage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
.el-card{
    margin-top: 20px;
}
.el-table{
    margin-top: 20px;
}
</style>
